Limits of the detection of microplastics in fish tissue using stimulated Raman scattering microscopy.

Biomed Opt Express

4th Physics Institute and Stuttgart Research Center of Photonic Engineering, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.

Published: March 2024


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Article Abstract

We demonstrate the detection sensitivity of microplastic beads within fish tissue using stimulated Raman scattering (SRS) microscopy. The intrinsically provided chemical contrast distinguishes different types of plastic compounds within fish tissue. We study the size-dependent signal-to-noise ratio of the microplastic beads and determine a lower boundary for the detectable size. Our findings demonstrate how SRS microscopy can serve as a complementary modality to conventional Raman scattering imaging in order to detect and identify microplastic particles in fish tissue.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10942679PMC
http://dx.doi.org/10.1364/BOE.519561DOI Listing

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